6English SpeakersFor systems bundled with speakers, before powering on the system,connect the speaker cable to the audio out (external speaker) port onthe back panel of the system.For more detailed information about the speakers, please refer to theincluded operating instructions.Note: speakers are optional and the appearance might bedifferent depending on the actual product.System upgradeYou can expand your AcerPower F3 system quickly and easily by addingcomponents. You can also upgrade the components of your AcerPowerF3 system.Opening the computerBefore removing any panels or covers, please make sure to shut off thecomputer and unplug the power cord from the outlet.• Remove the two screws on the side panel.• Slide the panel back and off.